This paper presents an optimal design of a static synchronous series compensator (SSSC)-based controller for damping of low-frequency oscillations in multi-machine power systems. The proposed controller design problem is formulated to the optimization problem. The tuning of controller parameters can be obtained by employing a new hybrid differential evolution and particle swarm optimization (hDE-PSO) algorithm. To justify the effectiveness of the proposed SSSC-based damping controller, three-machine and four-machine power systems have been considered. The hDE-PSO algorithm outperforms in the damping of oscillations over DE and PSO algorithms. Various simulation results are presented and compared for different load disturbances like three-phase fault, load rejection and tripping of one parallel transmission line. The simulation results ensure the robustness of the proposed controller.

中文翻译：

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使用基于混合 DE-PSO 优化的 SSSC 阻尼控制器减轻功率振荡

本文提出了一种基于静态同步串联补偿器 (SSSC) 的控制器的优化设计，用于抑制多机电力系统中的低频振荡。提出的控制器设计问题被公式化为优化问题。控制器参数的调整可以通过采用新的混合差分进化和粒子群优化 (hDE-PSO) 算法来获得。为了证明所提出的基于 SSSC 的阻尼控制器的有效性，已经考虑了三机和四机电力系统。hDE-PSO 算法在阻尼振荡方面优于 DE 和 PSO 算法。针对不同的负载扰动，如三相故障、甩负荷和一条并联输电线路跳闸，给出了各种仿真结果并进行了比较。